Soil cultivators

A soil-working cultivator comprising a generally horizontal frame supporting a plurality of power-driven soil-working members with downwardly extending tines arranged in a row that extends transverse to the direction of travel, said soil-working members including holders and tines mounted in said holders, said soil-working members being rotatable about upwardly extending axes to work overlapping strips of ground, an elongated roller member being connected to said cultivator in trailing position behind said row of soil-working members, said roller member being rotatable about a transverse substantially horizontally extending axis and having a soil-smoothening periphery of spaced apart elongated, substantially round elements which extend substantially parallel to the frame, said elements extending horizontally along the length of said roller member, said roller member being pivotally connected to said frame through arm means and said arm means including a pair of supporting arms, each of said arms extending to spaced apart connections adjacent an end of said row of soil-working members and said arms being connected at opposite sides of the row with respect to the direction of travel, a first of said connections being a pivot connection and a second of said connections including vertically spaced locking means for adjusting the relative heights of said frame with respect to the axis of rotation of said roller member to control the working depths of said soil-working members.